CVE-2010-3081

CVE Details

Release Date:	2010-09-24
Impact:	Important	What is this?

Description

The compat_alloc_user_space functions in include/asm/compat.h files in the Linux kernel before 2.6.36-rc4-git2 on 64-bit platforms do not properly allocate the userspace memory required for the 32-bit compatibility layer, which allows local users to gain privileges by leveraging the ability of the compat_mc_getsockopt function (aka the MCAST_MSFILTER getsockopt support) to control a certain length value, related to a stack pointer underflow issue, as exploited in the wild in September 2010.

See more information about CVE-2010-3081 from MITRE CVE dictionary and NIST NVD

NOTE: The following CVSS metrics and score provided are preliminary and subject to review.

CVSS v2 metrics

Base Score:	7.2
Vector String:	AV:L/AC:L/Au:N/C:C/I:C/A:C
Version:	2.0
Attack Vector:	Local
Attack Complexity:	Low
Authentication:	None
Confidentiality Impact:	Complete
Integrity Impact:	Complete
Availability Impact:	Complete

Errata information

Platform	Errata	Release Date
Oracle Enterprise Linux version 4 (kernel)	ELSA-2010-0718	2010-09-28
Oracle Enterprise Linux version 4 (ocfs2-2.6.9-89.29.1.0.1.EL)	ELSA-2010-0718	2010-09-28
Oracle Enterprise Linux version 4 (oracleasm-2.6.9-89.29.1.0.1.EL)	ELSA-2010-0718	2010-09-28
Oracle Linux version 5 (kernel)	ELSA-2010-0704	2010-09-21
Oracle Linux version 5 (ocfs2-2.6.18-194.11.4.0.1.el5)	ELSA-2010-0704	2010-09-21
Oracle Linux version 5 (oracleasm-2.6.18-194.11.4.0.1.el5)	ELSA-2010-0704	2010-09-21
Oracle Linux version 6 (kernel)	ELSA-2011-0007	2011-02-12